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Finding the Fourth Proportional to 28,694.10, 43,057.92 and 12,052.92

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Solution

The fourth proportional to 28,694.10, 43,057.92 and 12,052.92 is: 18,086.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,694.10 : 43,057.92 = 12,052.92 : x
  2. Step 2: Convert to fraction form
    28,694.10/43,057.92 = 12,052.92/x
  3. Step 3: Cross multiply
    28,694.10x = 43,057.92 × 12,052.92
  4. Step 4: Simplify right side
    28,694.10x = 518,973,665.13
  5. Step 5: Solve for x
    x = 518,973,665.13/28,694.10
  6. Step 6: Final answer
    x = 18,086.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.